Blow-out shoe



June 23, 1925. 1,543,151

A. H. COOPER BLOW-OUT SHOE Filed Feb. 14, 1925 1' u fi l? F y gwmw JJZ 620,062

Patented June 23, 1925.

PATENT OFFICE.

ALVA HEYWOOD COOPER, 0F ATLANTA, GEORGIA.

BLOW-OUT SHOE.

Application file-'1 February To all whom it may concern:

Be it known that I, ALVA H. COOPER, a citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented a new and useful Blow-Out Shoe, of which the following is a specification.

The device forming the subject matter of this application is a blow-out shoe, adapted to be placed within the casing of a vehicle tire, and the invention aims to provide a structure of the kind described which will be so made that it will withstand severe use.

It is within the province of the disclosure to improve generally and to enhance the utility 01 devices of that sort to which the invention appertains.

Although a preferred form of the invention has been shown, it will be understood that a mechanic, working within the scope of what is claimed, may make changes and alterations without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in top plan, a device constructed in accordance with the invention; Figure 2 is a bottom plan wherein parts are broken away; and Figure 3 is a cross section wherein the shoe is shown disposed in trough-shape.

The blow-out shoe forming the subject matter of this application is made of textile material, preferably heavy raw canvas. The shoe comprises a body 1. The length 2 of the body 1 is greater than the width of the body. A plurality of layers 4, 5 and 6 are superposed on the body 1. The area of each of the layers 4, 5 and 6 is less than the area of the layer next therebeneath, The area of the innermost layer 4 is less than the area or" the body 1.

The device comprises a zig-zag stitching '7. The stitching 7 is composed of long parallel parts 8 and short parallel parts 9. The

P parts 9 of the stitching connect the parts 8 at the ends thereof. The short parts 9 of the stitching are located at right angles to the long parts 8. Theshort parts 9 of the stitching join innermost layer 4 to the body 1. All of the long parts 9 of the stitching join at least one of the layers 14, 1925. Serial No. 9,253.

4-56 to the body 1. Some of the long parts 8 join all of the layers 456 to the body 1.

The short parts 9 of the stitching 7 extend parallel to the ends of the body 1 and are spaced aparttransversely of the body, as shown at 10. The long parts 8 of the stitching 7 extend parallel to the edges of the oody.

Owing to the way that the stitching 7 is made and placed, the body 1 and the layers 45-6 may be stitched together whilst they are flat, nevertheless, when the shoe is disposed in trough-shape, as shown at 11 in Figure 3, neither the body 1 nor any one of the layers 4, 5 and 6 will crinkle or buckle.

Having thus described the invention, what is claimed is A blow-out shoe for vehicle tires, the shoe being made of textile material and comprising a body, the length of which is greater than its width, a plurality of layers superposed on the body, the area of each layer being less than the area of the layer next therebeneath, the area of the innermost layer being less than the area of the body, and a zig-Zag stitching comprising parallel long parts and parallel short parts connecting the long parts at the ends thereof, the short parts being located at right angles to the long parts, the short parts joining the innermost layer to the body, all of the long parts joining at least one of the layers to the body, some of the long parts joining all or" the layers to the body; the short parts of the stitching extending parallel to the ends of the body and being spaced apart transversely of the body and the long parts of the stitching extending parallel to the edges of the body thereby permittingthe body and the layers to be united by the stitching whilst they are fiat and preventing them from buckling when the shoe is disposed in trough shape.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

ALVA HEYWOOD COOPER.

Witnesses:

S. T. ALLEN, FRED F. EDWARDS. 

